Features:
1.0.5w ultra-low-power ,ultra-small super-mini night light, camping dedicated mobile power, but when the desktop computer lights.
2. This lamp have three sizes and two light color.
3. #2 is Optical version,if the room is brighting enough,the #2 USB lamp can't light.
4. #3 is touchpad,you can adjust the brightness of the light with your hand.
5. Can be placed in your wallet, you can also hang on a key, very portable.Power supply: standard USB interface, as long as you can plug USB, 5V power, mobile power, notebooks, netbooks, desktop computers can be.(Note: Due to the LED power consumption is very small, many full stop will move from power, not suitable for use, would think that no load is automatically turned off)